Tandy / Radio Shack TRS80 portable computer.
In storage for many years within its protective pouch, thankfully with no batteries inserted. Photo shows battery compartment free from corrosion.
On fitting 4 Duracell 1.5v batteries, the unit powers up, the keys seem responsive and when BASIC programming mode is entered, a simple program (10 print “hello” 20 GoTo 10) is executed correctly.
No major marks or damage, excellent overall condition, a super opportunity to acquire a piece of computing history.